<form id='card-filter' route='CardsR'>
<h2>Print backlog cards:</h2>
Please choose the parent task: <br/>
<select name='parentTaskId'>
<?php
  foreach($nodes as $node) {
    echo 
      "<option value='".$node['id']."'>"
      .str_repeat(':::: &nbsp;', $node['level'] )
      .$node['name']
      ."</option>";
  }
?>
</select>
<button type='button' class='router' act='showCards'>ok</button>
<span id='card-filter-loading' style='display:none'><image id='alg' src='/images/ajax_loading.gif'/></span>
</form>